<?php
$mysqli = new Mysqli("localhost", "root", "root", "db_yuedu");
if ($mysqli->connect_errno) {
    die();
}   
$id = $_GET["id"]; 
$fn = $_GET["cb"];
$sql = "select * from t_articles where id={$id}";
$result = $mysqli->query($sql);
$articles = $result->fetch_assoc();
$json = json_encode($articles);
echo"{$fn}({$json})";
